JPS5833383Y2 - Sekiyunen Shoukinoroka Sochi - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a filtration device for an oil burner, and aims to simplify the structure of the filtration body and facilitate the installation of the oil pan into the dish.

Conventionally, a filtration device for an oil burner is a filtration device as shown in Japanese Utility Model Publication No. 486324, which uses heated and humidified pulp such as Japanese paper mixed with cotton or linen and a water-repellent phenol resin. Press it into the shape and dry it, or
It is formed by adsorbing pulp, cotton, or linen dissolved in a liquid along the shape of the filter, and impregnating it with phenol resin.

However, this method has disadvantages such as high cost and long production time, making it impossible to mass produce.

The present invention has been made in view of the above points, and in the following description of a drop-type oil combustor as an example, an upper wall 4 facing an oil pan 3 of a fuel tank 2 on which a refueling tank 1 is mounted is installed. An opening 6 is bored into which the valve device 5 disposed in the oil supply tank 1 can be freely inserted, and a bottomed cylindrical oil receiver with a bent edge 8 engaged with a jaw 7 on the periphery of the opening 6 is formed. The plate 9 is a hanging arrangement.

In the oil pan, a filter body 10 is press-fitted into the lower part of the tray 9 and is detachably attached thereto.

The valve device 5 includes a cap 12 which is screwed onto a fuel filler port 11 opened in the fuel tank 1, and a cap 12 which is fixed to the cap and which is connected to the fuel filler port 1.
1, a fuel outlet 16 provided inside the valve housing 14 and normally formed at the tip of the cap 12 by the return force of a spring 15;
It consists of a valve body 18 having a shaft 17 that is biased toward the side, and an O-ring 19 is arranged around the tip of the valve body 18 to maintain liquid tightness when the outlet port 16 and the valve body 18 come into contact with each other. It is.

The oil pan 9 has a ventilation hole 20 on the upper side wall, a fuel flow hole 21.21 on the lower side, and a fuel flow hole 22.2 on the bottom wall.
2 is bored, and a protruding rod 23 that comes into contact with the valve body 18 is arranged and fixed at the center of the bottom wall.

The filter body 10 includes a concave annular metal fitting 26 having a raised jaw 24 around a horizontal jaw 25 having a central opening, a circular flat bottom filter 27 whose peripheral edge is adhered to the upper surface of the horizontal jaw 25, and a lower part. It is formed into a bottomed cylindrical shape with a cylindrical filter 28 adhered to the inner surface of the rising jaw part 24,
The filter body 10 has the oil receiver in the flow hole 2 below the pan 9.
The oil pan is fitted onto the outer periphery of the pan 9 so as to cover 1.22, but when this is fitted, the oil pan is pressed against the outer surface of the side wall of the pan 9 by the rising jaws 24 of the annular fitting 26 of the filter body 10. It has become.

Further, the flat bottom filter 27 and the cylindrical filter 2
8 are each molded separately from filter paper.

FIG. 3 shows a conventional example of the filter body 29, which is integrally molded into a bottomed cylindrical shape (bowl shape) from pulp, cotton or hemp, and a repellent phenol resin, etc., and the receiver is a plate bottom wall, etc. It was attached with adhesive etc.

Note that the cylindrical filter 28 and the bottom filter 27
is a filter paper made of pulp, cotton or linen, and a repellent phenol resin.

The present invention is constructed as described above, and when the valve device 5 is inserted into the dish 9 and the oil supply tank 1 is mounted, the valve body 18 is pressed by the contact rod 23, and the communication hole 13, The fuel in the fuel tank 1 flows into the tray 9 through the outlet 16, and is guided into the fuel tank 2 through the flow holes 21.22, through the cylindrical filter 28 of the filter body 10, and the bottom filter 27. It will be destroyed.

Next, to explain the manufacturing method of the 7 filter body 10, a concave annular metal fitting 26 is prepared by punching a steel plate with a press, and a circular shape formed by cutting a ready-made 7 filter paper is placed on the inner surface of this annular metal fitting 26. flat bottom filter 27
and a cylindrical filter 28 formed into a ring shape by cutting ready-made filter paper into strips and adhering them to each other.

Therefore, unlike the conventional filter body 29, it does not require a long time for molding or complicated processing steps, and can be manufactured easily and inexpensively.

Furthermore, since the filter body 10 can be press-fitted to the outer periphery of the dish 9 by using the rising jaws 24 of the annular metal fitting 26 that integrates the cylindrical filter 28 and the flat bottom filter 27, a separate support is not required. It can be installed securely without
Even if the height of the cylindrical filter 28 is small, it will not come off due to combustor rocking, fuel permeability, etc.

As described above, according to the present invention, the oil receiver for receiving the valve device of the fuel tank has a bottomed cylindrical filter body removably fitted into the pan, and the filter body is made of filter paper. Since the cylindrical filter and the flat bottom filter are glued together on the inner surface of a central opening annular metal fitting with a jaw that rises up around the periphery, there is no need for long molding times or complicated processing steps as in the past. It can be manufactured easily and inexpensively.

Furthermore, when the filter body is fitted into the dish, the oil receiver is crimped onto the outer surface of the filter using the rising jaws of the annular fitting, so it can be securely attached without the need for a separate support. Even if the height dimension of the cylindrical part is small, it will not come off easily.

In addition, the oil pan has flow holes in the side and bottom walls of the pan, increasing the amount of oil supplied, and as a result, the filtration points are dispersed, making it less likely to clog and reducing the number of times the filter is cleaned. be able to.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a main part of an oil combustor showing an embodiment of the present invention, FIG. 2 is an exploded perspective view of the present invention, and FIG. 3 is a conventional example of a filtration device. 9... Oil pan is a plate, 10... Filter body, 2
6... Annular metal fitting, 27... Flat bottom filter, 28... Cylindrical filter

Claims (1)

[Scope of utility model registration request] The oil receiver that receives the valve device of the oil supply tank has a bottomed cylindrical filter that is removably fitted into the dish, and the filter has a cylindrical filter made of filter paper and a flat bottom filter. is integrated by adhesion to the inner surface of a central opening annular metal fitting having a rising jaw portion around the periphery, and the oil receiver is crimped to the outer surface of the container by the rising jaw portion of the annular metal fitting when fitted to the oil pan. A filtration device for an oil combustor, characterized in that the oil pan is configured as shown in FIG.